Return a more useful error message when you try to do a propget on an entry that does not exist in the specified revision.
Return a more useful error message when you try to do a propget on an entry
that does not exist in the specified revision.

Found by: Jason Kealey <jkealey@shade.ca>

* subversion/libsvn_client/prop_commands.c
  (remote_propget): Handle the svn_node_none case.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@859473 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion